Contact information

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Work experience

Chief Information Security Officer

from 08.2025 to now (1 year)
NDA, Дистанційно (Державні організації)

Implemented and administered Windows Active Directory Domain Services (AD DS), Active Directory Certificate Services (AD CS), Windows DNS, Linux and Windows security policies, Let’s Encrypt certificate automation, Wazuh SIEM, Shuffle SOAR, Suricata IDS, privacyIDEA MFA, HashiCorp Vault, Kubernetes, Docker, Docker Compose, Proxmox VE, Bareos, and Zabbix.

Developed Ansible playbooks for infrastructure configuration, deployment, and automation, and used Terraform to provision and manage virtual machines and infrastructure resources in Proxmox VE.

Implemented Layer 2 and Layer 3 network security controls, prepared Security Awareness training materials, and performed application security testing using SAST and DAST methodologies.

Reduced cybersecurity infrastructure and software costs by approximately UAH 3 million through the implementation and integration of open-source security solutions as alternatives to commercial products.

Junior DevOps engineer

from 10.2022 to 09.2025 (3 years)
NDA, Дистанційно (IT)

Jenkins CI, GItlab CI, Artifactory, TeamCity CI, Linux, Ansible, AWS(EC2, VPC, S3, IAM, Route 53), Docker, Docker-compose, Windows, Windows SQL, SAST, SCA, SSDLC, Python Bash basic script

Engineer of network solutions support

from 05.2018 to 02.2022 (3 years 10 months)
Main Information and Computer Center, Київ (Державні організації)

Configuring: HPE IMC, AirWave, ClearPass,ReckTaples, Lenovo
XClarity;
Configuring : HP Procurva, Aruba, Cisco, Lenovo, Dlink, Fortigat
e, FortiАnalyzer, Edge;
Configuring: FreeBSD Bind, Unbound, DHCP, FTP, SendMail, Exim;
Configuring: Windows server DHCP, DNS;
Configuring: WiFi Aruba;
Monitoring: Zabbix, Nedi, Nagios, Solarwinds, SkyControl, LenovoXClarity, Aruba AirWave, HPE IMC;
Network security

System Administrator

from 07.2017 to 03.2018 (9 months)
Jewelry House ZARINA, Київ (Роздрібна торгівля)

Support 80 users + 40 stores if necessary training;
Support of OS Windows XP/7/8/10;
Support of office programs, anti-virus protection;
Support WiFi asus, D-link, Tp-link, mikrotik;
Support Partizan, hivision;
Support ip telephony;
Support commercial equipment

System Administrator

from 10.2016 to 05.2017 (8 months)
Сity Administration Boyarka, Боярка (Державні організації)

Proxmox VE, Windows Active Directory Domain Services, Windows FileServer, Windows DNS, Windows server, Linux server, User Support

Education

STEP IT Academy

Networking and cybersecurity, Київ
Unfinished higher, from 2016 to 2019 (3 years)

National aviation university

Organization of transportation and transport management, Київ
Higher, from 2011 to 2016 (5 years)

Additional education and certificates

AWS Certified Solutions Architect Associate

2022

AWS Cloud Practitioner

2022

Building Automated Machine Images with HashiCorp Packer

2022

Fundamentals of Vagrant

2022

Docker и Docker Compose - Deploy a project from scratch

2022

Basics of working with Git, GitHub and GitHub Actions

2022

Docker for beginners + hands-on experience

2022

Docker + Ansible - from scratch, deploy and manage Swarm

2022

Docker Swarm in practice

2022

Jenkins for DevOps Engineers

2022

Terraform for Beginners

2022

Kubernetes for beginners

2023

Proxmox: Affordable Virtualization

2022

Devops Start

2021

Hillel DevOps

2022

EPAM [OnlineUA] DevOps Winter

2022

ITEA DevOps

2022

Microsoft Certified Azure Fundamentals H742-8682

2021

Linux Basics

2023

Linux Administrator

2023

Hillel Python Basic

2022

Полный Курс по Python, Django, Data Science и ML

2023

С++ Basic

2026

Cybersecurity Specialist Profession from Scratch

2025

Knowledge and skills

• Здатність до навчання
• Jenkins
• Ansible
• GitLab
• TeamCity
• JFrog Artifactory
• Адміністрування Linux Server
• Адміністрування Windows Server
• Git
• Docker
• AWS
• MS SQL Server
• BASH
• PostgreSQL
• Docker Compose
• Налаштування DNS
• DHCP
• FTP
• Networking
• Docker Swarm
• SAST
• SCA
• SSDLC
• Kubernetes
• Wazuh
• Shuflle
• Suricata
• PrivacyIdea
• Hashicorp Vault
• Proxmox VE
• Bareos
• Zabbix

Language proficiencies

English — average

Additional information

https://github.com/vadimbeznosenko/study